I-TEC Co., Ltd.

Any device whose MAC address begins with 00:25:EF has a network interface built by I-TEC Co., Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:25:EF

Organization

I-TEC Co., Ltd.

Address

7/F,KAWARAMACHI KOYO BLDG.3-4-3,KAWARAMCHI,CHUO-KU, OSAKA JP 541-0048

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.